A 1 1/2 ton a/c unit should handle 820 sq. ft. Make sure you have a good insulation value in the attic. At least 6" of insulation.
820 mm is 2.69029 feet.
There are 5280 feet in one mile. Therefore, rounded to two decimal places, 820 feet is equal to 820/5280 = 0.16 miles.
Factors refer to whole numbers. The square root of 820 is not a whole number.
21940 feet
If you mean .820 then it is 0.91 rounded to the nearest hundredth
820 feet 233⁄64 inches.
An area 1 ft wide and 820 ft long is one example.
You can use a calculator to get its decimal value: 28.6356. Or you can simplify it by finding numbers that are factors of 820 that are squares ... 4 x 205 = 820 and so √820 = √4 x √205 = 2√205.
273.33 yards
The area of Çifteler is 820 square kilometers.
48.494 acres
250 meters is about 820 feet 2½ inches.